JPS6245574A - Production of 2,2,6,6-tetramethyl-4-oxopiperidine - Google Patents

Production of 2,2,6,6-tetramethyl-4-oxopiperidine

Info

Publication number
JPS6245574A
JPS6245574A JP18651185A JP18651185A JPS6245574A JP S6245574 A JPS6245574 A JP S6245574A JP 18651185 A JP18651185 A JP 18651185A JP 18651185 A JP18651185 A JP 18651185A JP S6245574 A JPS6245574 A JP S6245574A
Authority
JP
Japan
Prior art keywords
phosphorus
acetone
halide
sulfur
oxopiperidine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP18651185A
Other languages
Japanese (ja)
Inventor
Tetsuji Ike
Kazuo Nakagawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Welfide Corp
Original Assignee
Welfide Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Welfide Corp filed Critical Welfide Corp
Priority to JP18651185A priority Critical patent/JPS6245574A/en
Publication of JPS6245574A publication Critical patent/JPS6245574A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To obtain the titled compound useful as an intermediate for synthesizing a light stabilizer for high polymer materials, drugs, etc., in high yield in high purity, by reacting acetone or an acidic condensate of acetone with acetonin by the use of a phosphorus halide or a sulfur halide.
CONSTITUTION: Acetone or an acidic condensate of acetone (especially diacetone alcohol) is reacted with acetonin, namely 2,2,4,4,6-pentamethyl-2,3,4,5- tetrahydropyrimidine, in the presence of a phosphorus halide such as phosphorus trichloride, phosphorus pentachloride, phosphorus oxychloride, etc., or a sulfur halide such as thionyl chloride, sulfuryl chloride, sulfur monochloride, etc., as a catalyst, to give 2,2,6,6-tetramethyl-4-oxopiperidine.
EFFECT: A small amount of a catalyst is required and a reaction time is also short.
COPYRIGHT: (C)1987,JPO&Japio
JP18651185A 1985-08-23 1985-08-23 Production of 2,2,6,6-tetramethyl-4-oxopiperidine Pending JPS6245574A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18651185A JPS6245574A (en) 1985-08-23 1985-08-23 Production of 2,2,6,6-tetramethyl-4-oxopiperidine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18651185A JPS6245574A (en) 1985-08-23 1985-08-23 Production of 2,2,6,6-tetramethyl-4-oxopiperidine

Publications (1)

Publication Number Publication Date
JPS6245574A true JPS6245574A (en) 1987-02-27

Family

ID=16189781

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18651185A Pending JPS6245574A (en) 1985-08-23 1985-08-23 Production of 2,2,6,6-tetramethyl-4-oxopiperidine

Country Status (1)

Country Link
JP (1) JPS6245574A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014051493A (en) * 2012-09-07 2014-03-20 Evonik Industries Ag Production method and aftertreatment method of triacetoneamine-containing reaction mixture

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014051493A (en) * 2012-09-07 2014-03-20 Evonik Industries Ag Production method and aftertreatment method of triacetoneamine-containing reaction mixture

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